data have;
input x @@;
cards;
52.3 53.5 50.5 50.3 49.6 51.0 48.3 50.6 50.2 52.5 47.5
50.9 49.8 50.0 53.0 50.9 49.9 50.1 50.7 48.2 51.5 49.0
51.7 53.2 51.1 52.6 51.2 49.5 51.9 52.0 48.8 46.8 51.3
49.3 54.0 49.2 51.4 48.5 50.8 49.4
;
run;
proc univariate data=have mu0=50 all;
var x;
run;
Student t
t
2.212388
Pr > |t|
0.0329
It is significant . is NOT equal 50 at alpha=0.05 .
Basic Confidence Limits Assuming Normality
Parameter
Estimate
95% Confidence Limits
Mean
50.57500
50.04930
51.10070
Std Deviation
1.64375
1.34650
2.11064
Variance
2.70192
1.81306
4.45479
Mean is great than 50 at alpha=0.05 .
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